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                        /Android攻城狮的第一门课（入门篇）

Exception raised during rendering: android.widget.EditText cannot be cast to android.view.ViewGroup Exception details are logged in Window > Show View > Error Log

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"    
    tools:context=".MainActivity_0001" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignTop="@+id/editText1"
        android:text="姓名："
        android:textColor="#606060"
        android:textSize="20sp" />

    <EditText
        android:id="@+id/editText1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_toRightOf="@+id/textView1"
        <requestFocus/>
       <EditText/>

        
    <TextView
        android:id="@+id/textView3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/editText1"
        android:layout_marginTop="18dp"
        android:text="密码："
        android:textColor="#606060"
        android:textSize="20sp" />

    <EditText
        android:id="@+id/editText3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@+id/textView3"
        android:layout_alignLeft="@+id/editText1"
        android:layout_alignParentRight="true"
        android:ems="10"
        android:inputType="textPassword" />
<LinearLayout/>

不知道问题出在哪了。。。。